 The success of Alaska sourdough peat is based on this high microbial content. The microbes produce nitrogen. It's nature's 100% organic fertilizer. It's got the pH that you need to really make a difference with your garden or with your flowers. Get those flowers blooming, baby. They're so beautiful. There's so many ones that show up when we don't even try, like lupins. And then, of course, the fireweed. But, boy, when you get your garden...